diff --git a/etcdserver/metrics.go b/etcdserver/metrics.go
index afc994c3f47f..58147c430441 100644
--- a/etcdserver/metrics.go
+++ b/etcdserver/metrics.go
@@ -112,6 +112,13 @@ var (
 		Help:      "Which Go version server is running with. 1 for 'server_go_version' label with current version.",
 	},
 		[]string{"server_go_version"})
+	serverID = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Namespace: "etcd",
+		Subsystem: "server",
+		Name:      "id",
+		Help:      "Server or member ID in hexadecimal format (1 for 'server_id' label with current ID)",
+	},
+		[]string{"server_id"})
 )
 
 func init() {
@@ -129,6 +136,7 @@ func init() {
 	prometheus.MustRegister(quotaBackendBytes)
 	prometheus.MustRegister(currentVersion)
 	prometheus.MustRegister(currentGoVersion)
+	prometheus.MustRegister(serverID)
 
 	currentVersion.With(prometheus.Labels{
 		"server_version": version.Version,
diff --git a/etcdserver/server.go b/etcdserver/server.go
index 0df0354f9898..7b569f20c935 100644
--- a/etcdserver/server.go
+++ b/etcdserver/server.go
@@ -60,6 +60,7 @@ import (
 	"github.com/coreos/go-semver/semver"
 	"github.com/coreos/pkg/capnslog"
 	humanize "github.com/dustin/go-humanize"
+	"github.com/prometheus/client_golang/prometheus"
 	"go.uber.org/zap"
 )
 
@@ -511,6 +512,7 @@ func NewServer(cfg ServerConfig) (srv *EtcdServer, err error) {
 		forceVersionC:    make(chan struct{}),
 		AccessController: &AccessController{CORS: cfg.CORS, HostWhitelist: cfg.HostWhitelist},
 	}
+	serverID.With(prometheus.Labels{"server_id": id.String()}).Set(1)
 
 	srv.applyV2 = &applierV2store{store: srv.v2store, cluster: srv.cluster}